"widely used" could be "extensively utilized|frequently adopted|commonly implemented". "especially on netbooks and low-end computers." – "netbooks" is a proper noun? Maybe not. "Low-end" can be "budget|entry-level|affordable". But the user said not to touch proper nouns. So "netbooks" and "computers" are okay as they are.
"In this article, we will discuss the importance of activating Windows 7 Starter 32-bit, the different methods of activation, and provide a step-by-step guide on how to activate your copy of Windows 7 Starter 32-bit." activator windows 7 starter 32 bit
Changing the screen desktop image Utilizing styles Activating and turning off the Microsoft Firewall Obtaining Microsoft upgrades "Low-end" can be "budget|entry-level|affordable"
"KMS Activation Issues: If you encounter issues with KMS activation, make sure that the KMS host is configured correctly." "Encounter issues" to "face problems|run into errors|meet obstacles." "Configured correctly" becomes "set up properly|adjusted accurately|properly adjusted." "In this article, we will discuss the importance
"In this article" – "In this piece", "In this composition", "In this paper". "discussed" can be "explored", "addressed", "examined". "importance" – "value", "significance", "relevance". "activation" again, but proper noun? No, it's a general term. Methods of activation – methods can be "ways", "approaches", "techniques". Activate – "license", "authorize", "enable".
I should also check for consistency in synonyms. For instance, "activate" appears multiple times, so maintaining the same set of synonyms there would help. Also, making sure that the synonyms make sense in context. For example, "initialize" for "activate" might not be appropriate in all contexts, but since the user didn't specify that, I'll proceed as instructed.